GB9220430D0 - Optical filter - Google Patents

Optical filter

Info

Publication number
GB9220430D0
GB9220430D0 GB929220430A GB9220430A GB9220430D0 GB 9220430 D0 GB9220430 D0 GB 9220430D0 GB 929220430 A GB929220430 A GB 929220430A GB 9220430 A GB9220430 A GB 9220430A GB 9220430 D0 GB9220430 D0 GB 9220430D0
Authority
GB
United Kingdom
Prior art keywords
optical filter
filter
optical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
GB929220430A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BAE Systems Electronics Ltd
Original Assignee
GEC Marconi Ltd
Marconi Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GEC Marconi Ltd, Marconi Co Ltd filed Critical GEC Marconi Ltd
Priority to GB929220430A priority Critical patent/GB9220430D0/en
Publication of GB9220430D0 publication Critical patent/GB9220430D0/en
Priority to US08/127,738 priority patent/US5428701A/en
Priority to GB9320016A priority patent/GB2270991A/en
Priority to EP93307691A priority patent/EP0590943A1/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/03—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect
    • G02F1/035—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect in an optical waveguide structure
    • G02F1/0353—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect in an optical waveguide structure involving an electro-optic TE-TM mode conversion
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
    • G02F2201/124—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode interdigital
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2203/00—Function characteristic
    • G02F2203/05—Function characteristic wavelength dependent
    • G02F2203/055—Function characteristic wavelength dependent wavelength filtering

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Integrated Circuits (AREA)
GB929220430A 1992-09-28 1992-09-28 Optical filter Pending GB9220430D0 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB929220430A GB9220430D0 (en) 1992-09-28 1992-09-28 Optical filter
US08/127,738 US5428701A (en) 1992-09-28 1993-09-28 Electro-optical tunable filter
GB9320016A GB2270991A (en) 1992-09-28 1993-09-28 Optical filter
EP93307691A EP0590943A1 (en) 1992-09-28 1993-09-28 Optical filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB929220430A GB9220430D0 (en) 1992-09-28 1992-09-28 Optical filter

Publications (1)

Publication Number Publication Date
GB9220430D0 true GB9220430D0 (en) 1992-11-11

Family

ID=10722622

Family Applications (2)

Application Number Title Priority Date Filing Date
GB929220430A Pending GB9220430D0 (en) 1992-09-28 1992-09-28 Optical filter
GB9320016A Withdrawn GB2270991A (en) 1992-09-28 1993-09-28 Optical filter

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB9320016A Withdrawn GB2270991A (en) 1992-09-28 1993-09-28 Optical filter

Country Status (3)

Country Link
US (1) US5428701A (en)
EP (1) EP0590943A1 (en)
GB (2) GB9220430D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5563970A (en) * 1995-02-08 1996-10-08 Northern Telecom Limited Taper shapes for ultralow sidelobe levels in directional coupler filters
JP2007248850A (en) * 2006-03-16 2007-09-27 Oki Electric Ind Co Ltd Mach-zehnder type semiconductor element and control method thereof

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4327971A (en) * 1978-06-05 1982-05-04 Nippon Electric Co., Ltd. Electro-optical light modulators, light wavelength multiplex signal transmitting apparatus and light wavelength separating switches utilizing the same
US4415226A (en) * 1980-12-31 1983-11-15 Battelle Memorial Institute Apparatus for controlling light in electrooptic waveguides with individually addressable electrodes
EP0063626B1 (en) * 1981-04-28 1985-07-17 International Business Machines Corporation Bus arrangement for interconnectiong circuit chips
JPH0666012B2 (en) * 1986-09-22 1994-08-24 ブリティシュ・テレコミュニケーションズ・パブリック・リミテッド・カンパニ Polarization control device and method
US4966431A (en) * 1989-08-10 1990-10-30 At&T Bell Laboratories Integrated-optic endless polarization transformer
JPH03242619A (en) * 1990-02-20 1991-10-29 Nikon Corp Waveguide type polarization rotating element subjected to color correction
JP2902082B2 (en) * 1990-08-30 1999-06-07 沖電気工業株式会社 Optical wavelength filter and driving method thereof
US5218653A (en) * 1991-11-08 1993-06-08 Bell Communications Research, Inc. Polarization converter with apodized acoustic waveguide

Also Published As

Publication number Publication date
GB9320016D0 (en) 1993-11-17
US5428701A (en) 1995-06-27
GB2270991A (en) 1994-03-30
EP0590943A1 (en) 1994-04-06

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